Windows live messenger not working!!!?

well the problem is when i sign in, it says trouble shoot problems may be cuz of the firewall settings, i changed them to all the possible ways but still doesn't work

Error Code: 80048820

Extended error code: 80048412

this is wht pops up, please help please!!!!!

Windows live messenger not working!!!?internet explorer 6

check that the date is correct on your computer.

Windows live messenger not working!!!?windows live internet explorer

the problem often occurs because the time and date settings on the computer are incorrect.

Double click you clock and set the time and date correctly